Transfer printing roller assembly and fuel cell proton exchange membrane transfer printing preparation device

Abstract

The invention relates to the technical field of film transfer printing, in particular to a transfer printing roller assembly which comprises a rack. The two transfer printing rollers are oppositely pressed and each provided with a driving mechanism, the upper transfer printing roller is installed on the machine frame in a height positioning mode, and the lower transfer printing roller is installed on the machine frame in a floating mode; the oil cylinder is provided with an extending end, the oil cylinder is located below the lower transfer printing roller, and the extending end of the oil cylinder faces the lower transfer printing roller; the weighing sensor is mounted between the extending end of the oil cylinder and the lower transfer printing roller, and the weighing sensor is used for detecting the bearing pressure of the lower transfer printing roller so as to adjust the jacking pressure of the extending end of the oil cylinder on the lower transfer printing roller. The transfer printing quality is improved through the transfer printing roller assembly, and the phenomena that a traditional air cylinder is insufficient in pressure and not high in precision, and a servo motor is stuck due to overload are effectively avoided. The invention also provides a transfer printing preparation device for the proton exchange membrane of the fuel cell.

Description

Technical Field

[0001] This invention relates to the field of membrane transfer technology, and in particular to a transfer roller assembly and a fuel cell proton exchange membrane transfer preparation apparatus. Background Technology

[0002] CCM membrane is a proton exchange membrane with a catalyst coating. It consists of a PEM membrane (proton exchange membrane), an anode catalyst coating, and a cathode catalyst coating.

[0003] In existing manufacturing processes: 1. Direct coating: Due to the swelling characteristics of the proton exchange membrane, the substrate is prone to wrinkling. Vacuum rollers are expensive to manufacture, and their outer diameter accuracy is low (0.005mm), making it difficult to meet the accuracy requirements of extrusion coating (0.001mm). 2. Intermediate coating / transfer printing: The catalyst coating is applied to the PTFE membrane and then transferred by hot pressing using transfer rollers. Before improvement, it was difficult to precisely control the transfer pressure of the transfer rollers, and the gap between the rollers was poor, resulting in poor repeatability and transfer effect. This manifested as unclear boundaries between the beginning and end of the transfer layer, thinness, and poor appearance.

[0004] The hot-press transfer process involves coating the anode catalyst and cathode catalyst onto a polytetrafluoroethylene (PTFE) film, and then transferring them to the proton exchange membrane via hot pressing. The cathode and anode coatings are then peeled off from the PTFE film and transferred onto both sides of the proton exchange membrane, forming a CCM membrane (proton exchange membrane with catalyst coating). Existing transfer rollers use cylinders to control the opening and closing of the two rollers, enabling continuous transfer. However, they are less effective for intermittent transfer processes. This is because: firstly, the cylinders are susceptible to system air pressure fluctuations, and the pressure is unstable. Other air-consuming points in the equipment can also cause system air pressure fluctuations. Consequently, the accuracy of the transferred pattern and gap dimensions is poor. Secondly, the transfer pressure is adjusted via air pressure, resulting in low precision and slow response.

[0005] The transfer roller uses an electric push rod. It has the following characteristics: 1. The lead screw has a lead error of 0.015mm; 2. The transmission gear or synchronous pulley has a large back system, resulting in poor repeatability (>0.005mm) and unstable transfer pressure with fluctuations greater than 200Kgf. Summary of the Invention

[0006] To address the aforementioned problems, this invention proposes a transfer roller assembly and a fuel cell proton exchange membrane transfer preparation device, which can solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In the first technical solution, a transfer roller assembly includes... frame; Two transfer rollers are used, and both transfer rollers are driven by a pressure mechanism. The upper transfer roller is mounted on the frame at a height position, while the lower transfer roller is mounted on the frame in a floating manner. A hydraulic cylinder having an extended end, the hydraulic cylinder being located below the lower transfer roller, the extended end of the hydraulic cylinder facing the lower transfer roller; A load cell is installed between the extended end of the hydraulic cylinder and the lower transfer roller. The load cell is used to detect the bearing pressure of the lower transfer roller, thereby adjusting the upward pressure of the extended end of the hydraulic cylinder on the lower transfer roller.

[0008] In the first technical solution, preferably, a guide rail is provided below the lower transfer roller, and a roller for cooperating with the guide rail is also provided below the lower transfer roller, so that the radial position of the lower transfer roller can be adjusted by the cooperation of the guide rail and the roller.

[0009] In the first technical solution, preferably, the outer side of the lower transfer roller also has a grating ruler for detecting the film edge markers of the transfer roller.

[0010] In the second technical solution, a fuel cell proton exchange membrane transfer preparation apparatus includes... A transfer roller assembly is used to press at least two sets of films to achieve material transfer on the film surface. The pre-assembly includes several adjusting rollers, which are used to adjust the position of the film before it enters the transfer roller assembly, so as to change the angle at which the film enters the transfer roller assembly.

[0011] In the second technical solution, preferably, the transfer roller assembly further includes a post-assembly. The transferred roller assembly passes the pressed film into the post-assembly, which includes a second tension detection roller and a speed encoding roller. The transferred roller assembly passes the pressed film sequentially around the second tension detection roller and the speed encoding roller. The second tension detection roller is used to detect the conveying tension of the pressed film output by the transfer roller assembly; Speed ​​encoding rollers are used to detect the conveying speed of the pressed film output from the transfer roller assembly.

[0012] In the second technical solution, as a preferred embodiment, the fuel cell proton exchange membrane transfer preparation device further includes several sets of unwinding mechanisms, winding mechanisms, and alignment auxiliary components, wherein the membrane conveyed between the unwinding mechanism and the winding mechanism passes through the corresponding alignment auxiliary components; The alignment auxiliary component is used to detect the position and conveying tension of the corresponding conveying membrane.

[0013] In the second technical solution, preferably, the alignment aid component includes at least: The first tension detection roller is used to detect the conveying tension of the film between the unwinding mechanism and the winding mechanism in the corresponding group, and then adjust the winding and unwinding speed of the corresponding unwinding mechanism or winding mechanism.

[0014] In the second technical solution, preferably, each set of unwinding and / or rewinding mechanisms in the fuel cell proton exchange membrane transfer preparation apparatus includes: CCD photocells are used to detect the position of the conveyed film between the unwinding and rewinding mechanisms in the corresponding group; The CCD photocell position servo includes an actuating end connected to the CCD photocell, which is used to servo adjust the relative position of the CCD photocell and the membrane.

[0015] In the second technical solution, preferably, the unwinding mechanism and / or rewinding mechanism includes Air-expanding shaft; The winding servo motor has its power end connected to the air shaft and drives the air shaft to rotate. A connecting plate, rotatably mounted on the air expansion shaft, the connecting plate having a linear guide rail extending axially along the air expansion shaft. The CCD photoelectric sensor position servo is a correction execution device. The execution end of the correction execution device is connected to a sliding rod, and the CCD photoelectric sensor is installed at the end of the sliding rod.

[0016] In the second technical solution, as a preferred embodiment, each unwinding mechanism and winding mechanism in the fuel cell proton exchange membrane transfer preparation device has a corresponding laser ranging component, which is used to detect the remaining amount of the wound film on the unwinding mechanism and the amount of the wound film on the winding mechanism. An ion bar is provided at the peeling position of the protective layer of the membrane and / or at the composite pressure position of the membrane to eliminate static electricity on the membrane surface.

[0017] The beneficial effects of the present invention will be described in detail below through specific embodiments. Attached Figure Description

[0018] Figure 1 This is a front view of the transfer roller assembly.

[0019] Figure 2 This is a side view of the transfer roller assembly.

[0020] Figure 3 This is a rear view of the transfer roller assembly.

[0021] Figure 4 This is a schematic diagram of a proton exchange membrane transfer fabrication apparatus for fuel cells.

[0022] Figure 5 A schematic diagram of the auxiliary components.

[0023] Figure 6 This is a schematic diagram of the front and rear components of the transfer roller assembly.

[0024] Figure 7 This is a top view of the cathode film winding mechanism.

[0025] Figure 8 This is a side view of the cathode film winding mechanism.

[0026] The reference numerals in the figures include: 11-Cathode film unwinding mechanism, 12-Cathode film alignment auxiliary component, 13-Cathode film winding mechanism, 14-Cathode film CCD defect detection component; 21-Proton exchange membrane unwinding mechanism, 22-Proton exchange membrane alignment auxiliary component, 23-Proton exchange membrane winding mechanism, 24-Proton exchange membrane CCD defect detection component, 211-First tension detection roller, 212-Tape splicing platform, 213-Adjusting roller; 31-Anode film unwinding mechanism; 32-Anode film alignment auxiliary component; 33-Anode film winding mechanism; 41-CCM membrane unwinding mechanism, 42-CCM membrane alignment auxiliary component, 43-CCM membrane winding mechanism, 44-CCM membrane CCD defect detection component; 111-Air shaft, 112-Correction actuator, 113-Take-up servo motor, 114-First planetary reducer, 115-Bearing housing, 116-First linear guide, 117-CCD photoelectric sensor, 118-Linear bearing, 119-Sliding rod, 1110-Connecting plate. 50-Transfer roller assembly, 51-Transfer roller, 52-Motor base, 53-Coupling, 54-Servo motor, 55-Second planetary reducer, 56-Wall panel, 57-Upper roller bearing housing, 58-Lower roller bearing housing, 59-Limit outer baffle, 510-Limit inner baffle, 511-Potential slip ring, 512-Connecting seat, 513-Roller, 514-Guide rail, 515-Hydraulic cylinder, 516-Weighing sensor, 517-Raster ruler, 518-Detection block; 61-Front component, 62-Rear component, 63-Laser ranging component, 64-Ionizing air bar, 611-Guide roller, 612-Pre-composite pressure roller, 613-First adjusting roller, 614-Second adjusting roller, 615-Third adjusting roller, 621-Second tension detection roller, 622-Speed ​​encoding roller, 623-Traction roller group. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this technical solution clearer, the following detailed description, in conjunction with specific embodiments, further illustrates this technical solution. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this technical solution.

[0028] Example 1 This embodiment proposes a transfer roller assembly 50, which is used to transfer several layers of film such as cathode film and anode film.

[0029] like Figure 1 As shown, the transfer roller assembly 50 in this embodiment includes a frame, a transfer roller 51, a motor base 52, a coupling 53, a servo motor 54, a second planetary reducer 55, a wall plate 56, an upper roller bearing seat 57, a lower roller bearing seat 58, an outer limiting baffle 59, an inner limiting baffle 510, a potential slip ring 511, a connecting seat 512, a roller 513, a guide rail 514, a hydraulic cylinder 515, a weighing sensor 516, a grating ruler 517, and a detection block 518, etc.

[0030] Specifically, the frame serves as the overall framework. The upper part of the frame is a frame structure for mounting the transfer rollers 51. There are two transfer rollers 51, both horizontally mounted in the frame. The upper transfer roller 51 is horizontally positioned with a fixed height. The lower transfer roller 51 presses against the upper transfer roller 51. The pressure between the upper transfer roller 51 and the lower transfer roller 51 can be changed by a hydraulic cylinder 515 located below it. The hydraulic cylinder 515 has an extended end and is located below the lower transfer roller 51, with the extended end facing the lower transfer roller 51. A load cell 516 is installed between the extended end of the hydraulic cylinder 515 and the lower transfer roller 51. The load cell 516 is used to detect the bearing pressure of the lower transfer roller 51, thereby adjusting the upward pressure of the extended end of the hydraulic cylinder 515 on the lower transfer roller 51.

[0031] like Figure 1 As shown, a motor mount 52 is provided on one side of the transfer roller 51. The output end of the servo motor 54 is connected to the input end of the second planetary reducer 55, and the output end of the second planetary reducer 55 is connected to the corresponding transfer roller 51 through a coupling 53. Figure 2As shown, a wall plate 56 is provided on the side of the transfer roller 51 opposite to the servo motor 54. Upper roller bearing seats 57 and lower roller bearing seats 58 are respectively installed on the sides of the two transfer rollers 51, and are sealed by an outer limit baffle 59 and an inner limit baffle 510 to prevent axial displacement of the wall plate 56, upper roller bearing seats 57, and lower roller bearing seats 58. Potential slip rings 511 are installed on the shaft ends of the transfer rollers 51, meaning that potential slip rings 511 are installed on the shaft ends of both transfer rollers 51. The potential slip rings 511 are used to detect shaft movement. In this embodiment, a weighing sensor 516 is connected to the lower transfer roller 51 via a connecting seat 512. The servo hydraulic lifting mechanism consists of a cylinder 515, a servo proportional valve, a grating ruler 517, a hydraulic station, and other mechanisms, controlling the up-and-down movement of the lower transfer roller 51. Roller guide rails 514 are mounted on both sides of the bearing housing 115 of the lower transfer roller 51, forming a planar guiding mechanism with the frame guide groove. This mechanism replaces the linear guide rail 516 for guidance and is easy to install and maintain. A guide rail 514 is located below the lower transfer roller 51, and rollers 513 cooperate with the guide rail 514. The radial position of the lower transfer roller 51 can be adjusted through the cooperation of the guide rail 514 and rollers 513. After the lower transfer roller 51 is positioned with the upper transfer roller 51 by installing a support plate, the fixing screws of the bearing housing of the upper transfer roller 51 and the axial positioning baffle are loosened, allowing the transfer roller assembly 50 to be lowered onto the guide rail 514. It is then pulled out from the side of the frame through the sliding groove on the guide rail 514. The front of the frame connects to the disassembly lifting trolley, thus completing the rapid disassembly and assembly of the roller assembly.

[0032] The transfer roller assembly 50 is equipped with a grating ruler 517 to detect the position of the lower transfer roller 51 and precisely control the gap between the upper and lower transfer rollers 51 during the transfer process. Simultaneously, two weighing sensors 516 are installed on the lower transfer roller 51 (left and right) to detect the pressure on it. The pressure signal is sent to the PLC for data statistics and analysis. The pressure control of the servo proportional valve in the hydraulic system is compensated and adjusted. This adjusts the pressure of the cylinder 515 in the servo hydraulic lifting mechanism, ensuring stable pressure on the transfer roller 51. The servo hydraulic lifting mechanism in this invention has three control modes: 1. Constant pressure control mode, 2. Constant roller gap control mode, and 3. Hybrid control mode. It has the following characteristics: 1. Extremely high control accuracy. Pressure can reach within 0.05%, and roller gap can reach ±1 micrometer. 2. The hydraulic cylinder 515 has an adaptive algorithm that can collect data and optimize control accuracy. The servo hydraulic lifting mechanism not only improves the quality of the transfer printing but also effectively avoids the problems of insufficient pressure and low precision of traditional cylinders, as well as the servo motor 54 jamming due to overload. It precisely ensures the process pressure for continuous and intermittent transfer printing, controls the gap between the transfer rollers, and achieves dimensional stability control of the transferred pattern.

[0033] Example 2 like Figure 4 As shown, this embodiment proposes a fuel cell proton exchange membrane transfer fabrication apparatus, including the transfer roller assembly 50 from Embodiment 1 above. The fuel cell proton exchange membrane transfer fabrication apparatus also includes a cathode membrane winding / unwinding assembly, a proton exchange membrane winding / unwinding assembly, an anode membrane winding / unwinding assembly, and a CCM membrane winding / unwinding assembly.

[0034] This fuel cell proton exchange membrane transfer preparation device includes a welded frame, a vertical plate mounted on the frame, and a sealed hood. The cathode membrane winding and unwinding assembly, proton membrane winding and unwinding assembly, anode membrane winding and unwinding assembly, CCM membrane winding and unwinding assembly, transfer roller assembly 50, pre-assembly 61 and post-assembly 62 are all mounted on the vertical plate and sealed by the sealed hood, creating an independent microenvironment to maintain strict control of dust and dew point in the production process.

[0035] Specifically, the cathode membrane unwinding and rewinding assembly includes a cathode membrane unwinding mechanism 11, a cathode membrane alignment auxiliary assembly 12, a cathode membrane rewinding mechanism 13, and a cathode membrane CCD defect detection assembly 14. The proton exchange membrane unwinding and rewinding assembly includes a proton exchange membrane unwinding mechanism 21, a proton exchange membrane alignment auxiliary assembly 22, a proton exchange membrane rewinding mechanism 23, and a proton exchange membrane CCD defect detection assembly 24. The anode membrane unwinding and rewinding assembly includes an anode membrane unwinding mechanism 31, an anode membrane alignment auxiliary assembly 32, and an anode membrane rewinding mechanism 33. The CCM membrane unwinding and rewinding assembly includes a CCM membrane unwinding mechanism 41, a CCM membrane alignment auxiliary assembly 42, a CCM membrane rewinding mechanism 43, and a CCM membrane CCD defect detection assembly 44.

[0036] First, the cathode membrane unwinding mechanism 11 and the proton exchange membrane unwinding mechanism 21 release the corresponding cathode membrane and proton exchange membrane. These membranes are then pressed and transferred via the pre-composite pressure roller 612 in the pre-assembly assembly 61. After separation by a cutting tool, the proton exchange membrane backing film is wound up by the proton exchange membrane winding mechanism 23. The anode membrane released by the anode membrane unwinding mechanism 31, along with the processed cathode membrane, is guided by the pre-assembly assembly 61 and enters the transfer roller assembly 50 for transfer. After passing through the post-assembly assembly 62, the cathode membrane backing film and anode membrane backing film are separated by a cutting tool and wound up by the cathode membrane winding mechanism 13 and anode membrane winding mechanism 33, respectively. On the right side of the transfer roller assembly 50, the CCM membrane released by the CCM membrane unwinding mechanism 41 is pressed and transferred with the membrane bodies from the peeled cathode and anode membrane backing films, and then guided into the CCM membrane winding mechanism 43 for winding.

[0037] The output membrane of the cathode membrane unwinding mechanism 11 enters the cathode membrane alignment auxiliary assembly 12, and the output membrane of the proton exchange membrane unwinding mechanism 21 enters the proton exchange membrane alignment auxiliary assembly 22. The output membrane of the anode membrane unwinding mechanism 31 enters the anode membrane alignment auxiliary assembly 32. The output membrane of the CCM membrane unwinding mechanism 41 enters the CCM membrane alignment auxiliary assembly 42 before entering the CCM membrane winding mechanism 43. The composition and detection principle of the cathode membrane alignment auxiliary assembly 12, proton exchange membrane alignment auxiliary assembly 22, anode membrane alignment auxiliary assembly 32, and CCM membrane alignment auxiliary assembly 42 are similar. The alignment auxiliary assemblies are used to detect the position and conveying tension of the corresponding conveying membrane. Specifically, the alignment auxiliary assembly includes at least a first tension detection roller 211, which is used to detect the conveying tension of the membrane between the unwinding mechanism and the winding mechanism in the corresponding group, thereby adjusting the winding and unwinding speed of the corresponding unwinding mechanism or winding mechanism.

[0038] Cathode membrane CCD defect detection component 14, proton membrane CCD defect detection component 24, and CCM membrane CCD defect detection component 44 are respectively installed on the membrane transport path before the cathode membrane winding mechanism 13, proton membrane winding mechanism 23, and CCM membrane winding mechanism 43. These components are used for visual inspection of the corresponding cathode membrane, proton membrane, and CCM membrane to avoid transfer defects.

[0039] The aforementioned cathode film unwinding mechanism 11, proton exchange membrane unwinding mechanism 21, anode film unwinding mechanism 31, and CCM film unwinding mechanism 41 all employ EPC unwinding and correction, with a CCD photoelectric sensor 117 used for correction. The position is controlled by a servo motor-driven ball screw. The CCD photoelectric sensor 117 can track the coating edge line or the film edge line, ensuring that the anode coating and cathode coating are aligned during the transfer process.

[0040] The aforementioned proton exchange membrane protective film winding mechanism, cathode bottom mold winding mechanism, CCM membrane winding mechanism 43, and anode bottom mold winding mechanism are included. The proton exchange membrane protective film winding mechanism employs EPC winding and correction. The correction photoelectric sensor is a CCD photoelectric sensor 117.

[0041] The drive guide roller in this invention adopts a single cantilever support structure. Each roller, including the drive guide roller, traction roller, unwinding mechanism, and winding mechanism, is fixed to a vertically mounted large upright plate. The large upright plate is fixed to a welded frame. Height is adjusted using feet to ensure the large upright plate is vertically installed, facilitating the adjustment of the guide roller's horizontal position. The single cantilever structure provides more space for tape threading operations, horizontal correction of the rollers, and maintenance.

[0042] In this invention, the anode membrane, proton exchange membrane, and cathode membrane are automatically aligned by detecting the coating edges using a correction CCD photoelectric sensor 117. This ensures accurate positioning of the anode catalyst coating and cathode catalyst coating on the proton exchange membrane during composite transfer. The correction CCD photoelectric sensor 117 adapts to coatings of varying widths via a servo motor, reducing alignment adjustment time between the anode and cathode coatings. After the coating width is calibrated on the touchscreen, the servo motor calibrates the current position of the photoelectric sensor. When changing product models, the new product's coating width value is input, and the photoelectric sensor automatically positions itself under the drive of the servo motor. This avoids repeated positioning adjustments and reduces material waste during the adjustment process.

[0043] like Figure 5 As shown, taking the proton exchange membrane alignment auxiliary component 22 as an example, the proton exchange membrane alignment auxiliary component 22 includes a first tension detection roller 211, a tape receiving platform 212, and an adjusting roller 213. The first tension detection roller 211 is used to detect the proton exchange membrane conveying tension. The tape receiving platform 212 is used for tape receiving after the corresponding proton exchange membrane unwinding mechanism 21 has unwound the proton exchange membrane and is fed into the line for rewinding. The composition and function of the cathode membrane alignment auxiliary component 12, proton exchange membrane alignment auxiliary component 22, anode membrane alignment auxiliary component 32, and CCM membrane alignment auxiliary component 42 are similar and will not be described again.

[0044] like Figure 6 As shown, a pre-assembly 61 is provided on the input side of the transfer roller assembly 50, and a post-assembly 62 is provided on the output side. The pre-assembly 61 includes an adjusting roller group and a guide roller 611. The adjusting roller group specifically consists of a first adjusting roller 613, a second adjusting roller 614, and a third adjusting roller 615. The adjusting roller 613 is used to adjust the position of the film before it enters the transfer roller assembly 50, thereby changing the angle at which the film enters the transfer roller assembly 50. The post-assembly 62 is where the film pressed by the transfer roller assembly 50 enters. The post-assembly 62 includes a second tension detection roller 621 and a speed encoding roller 622. The film pressed by the transfer roller assembly 50 passes sequentially around the second tension detection roller 621 and the speed encoding roller 622. The second tension detection roller 621 is used to detect the conveying tension of the pressed film output by the transfer roller assembly 50, and the speed encoding roller 622 is used to detect the conveying speed of the pressed film output by the transfer roller assembly 50. After the transfer and pressing of the film, it passes through the second tension detection roller 621 and the speed encoding roller 622, and is then fed into the traction roller group 623 for traction.

[0045] A pair of traction roller mechanisms are installed after the hot-rolled transfer roller. The traction roller mechanism consists of a traction roller, a traction pressure roller, and a drive servo motor 54. Between the hot-rolled transfer roller and the traction roller mechanism, a second tension detection roller 621 and a speed encoding roller 622 are installed. The second tension detection roller 621 controls the substrate between the hot-rolled transfer roller and the traction roller mechanism, and through closed-loop adjustment of the speed of the servo motor 54, ensures synchronous operation of the two mechanisms, thereby achieving speed synchronization control. The speed encoding roller 622 consists of an aluminum roller and an encoder. It has an automatic length recording function. This ensures that the coating length and gap length of the CCM film are maintained during the gap transfer process, meeting production process requirements.

[0046] like Figure 7 and Figure 8 As shown, in the fuel cell proton exchange membrane transfer preparation apparatus, the unwinding mechanism or winding mechanism also includes a CCD photoelectric sensor 117. The CCD photoelectric sensor 117 is used to detect the position of the membrane being transported between the unwinding mechanism and the winding mechanism in the corresponding group. The CCD photoelectric sensor 117 position servo includes an actuating end connected to the CCD photoelectric sensor 117, which is used to servo adjust the relative position of the CCD photoelectric sensor 117 and the membrane. Whether the unwinding mechanism or winding mechanism needs the CCD photoelectric sensor 117 and the CCD photoelectric sensor 117 position servo can be adjusted according to the actual situation.

[0047] Specifically, the unwinding mechanism and / or winding mechanism includes an air shaft 111 and a winding servo motor 113, the power end of which is connected to the air shaft 111 and drives the air shaft 111 to rotate. A connecting plate 1110 is rotatably mounted on the air shaft 111 via a bearing seat 115, and the connecting plate 1110 has a linear guide rail 516 extending along the axial direction of the air shaft 111. A CCD photoelectric sensor 117 is a position servo actuator 112, the execution end of which is connected to a sliding rod 119, and the CCD photoelectric sensor 117 is mounted at the end of the sliding rod 119. The power end of the winding servo motor 113 is connected to the air shaft 111 via a first planetary reducer 114. A bearing seat 115 is provided at the connection between the air shaft 111 and the first planetary reducer 114, and the connecting plate 1110 is mounted on the bearing seat 115. The correction actuator 112 can servo drive the CCD photoelectric sensor 117 to move axially along the linear guide rail 516, so as to drive the CCD photoelectric sensor 117 to change its position through the cooperation of the linear bearing 118 and the sliding rod 119.

[0048] like Figure 4 As shown, each unwinding mechanism and winding mechanism in the fuel cell proton exchange membrane transfer fabrication apparatus has a corresponding laser ranging component 63. The laser ranging component 63 is used to detect the remaining amount of membrane wound on the unwinding mechanism and the amount of membrane wound on the winding mechanism. Ionizing air bars 64 are provided at the peeling position of the membrane protective layer and / or the composite pressing position of the membrane to eliminate static electricity on the membrane surface.

[0049] The above content is only a preferred embodiment of the present invention. For those skilled in the art, many changes can be made in the specific implementation and application scope based on the ideas of the present invention. As long as these changes do not depart from the concept of the present invention, they all fall within the protection scope of this patent.

Claims

1. A transfer roller assembly, characterized in that: include frame; Two transfer rollers are used, and both transfer rollers are driven by a pressure mechanism. The upper transfer roller is mounted on the frame at a height position, while the lower transfer roller is mounted on the frame in a floating manner. A hydraulic cylinder having an extended end, the hydraulic cylinder being located below the lower transfer roller, the extended end of the hydraulic cylinder facing the lower transfer roller; A load cell is installed between the extended end of the hydraulic cylinder and the lower transfer roller. The load cell is used to detect the bearing pressure of the lower transfer roller, thereby adjusting the upward pressure of the extended end of the hydraulic cylinder on the lower transfer roller.

2. The transfer roller assembly according to claim 1, characterized in that: A guide rail is provided below the lower transfer roller, and a roller for cooperating with the guide rail is also provided below the lower transfer roller. The radial position of the lower transfer roller can be adjusted by cooperating with the guide rail and the roller.

3. The transfer roller assembly according to claim 1, characterized in that: The outer side of the lower transfer roller also has a grating ruler for detecting the film edge markers of the transfer roller.

4. A proton exchange membrane transfer fabrication apparatus for fuel cells, characterized in that: include A transfer roller assembly is used to press at least two sets of films to achieve material transfer on the film surface. The pre-assembly includes several adjusting rollers, which are used to adjust the position of the film before it enters the transfer roller assembly, so as to change the angle at which the film enters the transfer roller assembly.

5. The fuel cell proton exchange membrane transfer fabrication apparatus according to claim 4, characterized in that: The transfer roller assembly further includes a post-assembly. The pressed film enters the post-assembly via the transfer roller assembly. The post-assembly includes a second tension detection roller and a speed encoding roller. The pressed film sequentially passes over the second tension detection roller and the speed encoding roller in the transfer roller assembly. The second tension detection roller is used to detect the conveying tension of the pressed film output by the transfer roller assembly; Speed ​​encoding rollers are used to detect the conveying speed of the pressed film output from the transfer roller assembly.

6. The fuel cell proton exchange membrane transfer fabrication apparatus according to claim 4, characterized in that: The fuel cell proton exchange membrane transfer preparation device further includes several sets of unwinding mechanisms, winding mechanisms and alignment auxiliary components, wherein the membrane conveyed between the unwinding mechanism and the winding mechanism passes through the corresponding alignment auxiliary components; The alignment auxiliary component is used to detect the position and conveying tension of the corresponding conveying membrane.

7. The fuel cell proton exchange membrane transfer fabrication apparatus according to claim 6, characterized in that: The alignment aid component includes at least: The first tension detection roller is used to detect the conveying tension of the film between the unwinding mechanism and the winding mechanism in the corresponding group, and then adjust the winding and unwinding speed of the corresponding unwinding mechanism or winding mechanism.

8. The fuel cell proton exchange membrane transfer fabrication apparatus according to claim 6, characterized in that: Each set of unwinding and / or rewinding mechanisms in the fuel cell proton exchange membrane transfer preparation apparatus includes: CCD photocells are used to detect the position of the conveyed film between the unwinding and rewinding mechanisms in the corresponding group; The CCD photocell position servo includes an actuating end connected to the CCD photocell, which is used to servo adjust the relative position of the CCD photocell and the membrane.

9. The fuel cell proton exchange membrane transfer fabrication apparatus according to claim 8, characterized in that: The unwinding mechanism and / or winding mechanism include Air-expanding shaft; The winding servo motor has its power end connected to the air shaft and drives the air shaft to rotate. A connecting plate, rotatably mounted on the air expansion shaft, the connecting plate having a linear guide rail extending axially along the air expansion shaft. The CCD photoelectric sensor position servo is a correction execution device. The execution end of the correction execution device is connected to a sliding rod, and the CCD photoelectric sensor is installed at the end of the sliding rod.

10. The fuel cell proton exchange membrane transfer fabrication apparatus according to claim 8, characterized in that: Each unwinding mechanism and winding mechanism in the fuel cell proton exchange membrane transfer preparation device has a corresponding laser ranging component. The laser ranging component is used to detect the remaining amount of the wound film on the unwinding mechanism and the amount of the wound film on the winding mechanism. An ion bar is provided at the peeling position of the protective layer of the membrane and / or at the composite pressure position of the membrane to eliminate static electricity on the membrane surface.

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